为了解决船舶嵌入式操纵训练系统软件设计中出现的数据显示滞后、界面卡顿和系统死机问题,引入基于QNX操作系统的多线程技术进行系统软件程序改进设计.通过仿真实验对系统功能和实时性能进行了检验,结果表明:系统软件可以模拟船舶运动,实现训练功能;多线程程序改进设计有效解决了数据显示滞后、界面卡顿和死机问题,系统能够完成对模型的实时解算和状态参数的实时显示,数据更新时间在2 ms内,满足实时性要求.%In order to resolve the problems of data display delay,interface buffering,and system crash during software de-sign of the embedded training system for ship maneuvering,the QNX OS-based multithreading technology is imported for design improvement of system software program. The simulation experiment was carried out to detect the function and real-time perfor-mance of the system. The results show that the system software can simulate ship motion and realize the training function,the design improvement of multithreading program effectively resolves the problems of data display delay,interface buffering and sys-tem crash,the system can accomplish real-time resolution of the model and real-time display of status parameters,and the data update interval(no more than 2 ms)can meet the real-time requirement.
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